4043120042 has 16 divisors (see below), whose sum is σ = 6537683880. Its totient is φ = 1864201152.

The previous prime is 4043120023. The next prime is 4043120051. The reversal of 4043120042 is 2400213404.

It can be written as a sum of positive squares in 4 ways, for example, as 1127012041 + 2916108001 = 33571^2 + 54001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4043119996 and 4043120023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50417 + ... + 103092.

Almost surely, 2^4043120042 is an apocalyptic number.

4043120042 is a deficient number, since it is larger than the sum of its proper divisors (2494563838).

4043120042 is a wasteful number, since it uses less digits than its factorization.

4043120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154537.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4043120042 is about 63585.5332760527. The cubic root of 4043120042 is about 1593.0847438816.

Adding to 4043120042 its reverse (2400213404), we get a palindrome (6443333446).

The spelling of 4043120042 in words is "four billion, forty-three million, one hundred twenty thousand, forty-two".